Mercurial > hg > nginx
annotate src/http/modules/ngx_http_rewrite_module.c @ 666:ddaa33b0817a
release-0.3.54 tag
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 11 Jul 2006 13:20:19 +0000 |
parents | 6d5c1535bb9d |
children | 63a820b0bc6c |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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11 |
485 | 12 typedef struct { |
577 | 13 ngx_array_t *codes; /* uintptr_t */ |
485 | 14 |
577 | 15 ngx_uint_t captures; |
16 ngx_uint_t stack_size; | |
485 | 17 |
577 | 18 ngx_flag_t log; |
635 | 19 ngx_flag_t uninitialized_variable_warn; |
485 | 20 } ngx_http_rewrite_loc_conf_t; |
216
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21 |
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22 |
485 | 23 static void *ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf); |
24 static char *ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf, | |
487 | 25 void *parent, void *child); |
509 | 26 static ngx_int_t ngx_http_rewrite_init(ngx_cycle_t *cycle); |
485 | 27 static char *ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
28 static char *ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, | |
487 | 29 void *conf); |
527 | 30 static char *ngx_http_rewrite_break(ngx_conf_t *cf, ngx_command_t *cmd, |
31 void *conf); | |
485 | 32 static char *ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, |
487 | 33 void *conf); |
501 | 34 static char * ngx_http_rewrite_if_condition(ngx_conf_t *cf, |
35 ngx_http_rewrite_loc_conf_t *lcf); | |
36 static char *ngx_http_rewrite_variable(ngx_conf_t *cf, | |
37 ngx_http_rewrite_loc_conf_t *lcf, ngx_str_t *value); | |
509 | 38 static char *ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, |
501 | 39 void *conf); |
577 | 40 static char * ngx_http_rewrite_value(ngx_conf_t *cf, |
41 ngx_http_rewrite_loc_conf_t *lcf, ngx_str_t *value); | |
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42 |
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44 static ngx_command_t ngx_http_rewrite_commands[] = { |
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45 |
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46 { ngx_string("rewrite"), |
485 | 47 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
48 |NGX_CONF_TAKE23, | |
49 ngx_http_rewrite, | |
50 NGX_HTTP_LOC_CONF_OFFSET, | |
51 0, | |
52 NULL }, | |
53 | |
54 { ngx_string("return"), | |
55 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
56 |NGX_CONF_TAKE1, | |
57 ngx_http_rewrite_return, | |
58 NGX_HTTP_LOC_CONF_OFFSET, | |
216
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59 0, |
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60 NULL }, |
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61 |
527 | 62 { ngx_string("break"), |
63 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
64 |NGX_CONF_NOARGS, | |
65 ngx_http_rewrite_break, | |
66 NGX_HTTP_LOC_CONF_OFFSET, | |
67 0, | |
68 NULL }, | |
69 | |
485 | 70 { ngx_string("if"), |
71 NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_BLOCK|NGX_CONF_1MORE, | |
72 ngx_http_rewrite_if, | |
437
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73 NGX_HTTP_LOC_CONF_OFFSET, |
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74 0, |
485 | 75 NULL }, |
76 | |
501 | 77 { ngx_string("set"), |
78 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
79 |NGX_CONF_TAKE2, | |
80 ngx_http_rewrite_set, | |
81 NGX_HTTP_LOC_CONF_OFFSET, | |
82 0, | |
83 NULL }, | |
84 | |
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85 { ngx_string("rewrite_log"), |
635 | 86 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF |
87 |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG, | |
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88 ngx_conf_set_flag_slot, |
485 | 89 NGX_HTTP_LOC_CONF_OFFSET, |
90 offsetof(ngx_http_rewrite_loc_conf_t, log), | |
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91 NULL }, |
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92 |
635 | 93 { ngx_string("uninitialized_variable_warn"), |
94 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF | |
95 |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG, | |
96 ngx_conf_set_flag_slot, | |
97 NGX_HTTP_LOC_CONF_OFFSET, | |
98 offsetof(ngx_http_rewrite_loc_conf_t, uninitialized_variable_warn), | |
99 NULL }, | |
100 | |
216
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101 ngx_null_command |
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102 }; |
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103 |
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104 |
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105 ngx_http_module_t ngx_http_rewrite_module_ctx = { |
509 | 106 NULL, /* preconfiguration */ |
107 NULL, /* postconfiguration */ | |
216
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108 |
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109 NULL, /* create main configuration */ |
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110 NULL, /* init main configuration */ |
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111 |
485 | 112 NULL, /* create server configuration */ |
113 NULL, /* merge server configuration */ | |
216
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114 |
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115 ngx_http_rewrite_create_loc_conf, /* create location configration */ |
485 | 116 ngx_http_rewrite_merge_loc_conf /* merge location configration */ |
216
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117 }; |
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118 |
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119 |
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120 ngx_module_t ngx_http_rewrite_module = { |
509 | 121 NGX_MODULE_V1, |
577 | 122 &ngx_http_rewrite_module_ctx, /* module context */ |
216
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123 ngx_http_rewrite_commands, /* module directives */ |
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124 NGX_HTTP_MODULE, /* module type */ |
541 | 125 NULL, /* init master */ |
216
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126 ngx_http_rewrite_init, /* init module */ |
541 | 127 NULL, /* init process */ |
128 NULL, /* init thread */ | |
129 NULL, /* exit thread */ | |
130 NULL, /* exit process */ | |
131 NULL, /* exit master */ | |
132 NGX_MODULE_V1_PADDING | |
216
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133 }; |
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134 |
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135 |
487 | 136 static ngx_int_t |
137 ngx_http_rewrite_handler(ngx_http_request_t *r) | |
216
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138 { |
509 | 139 ngx_http_script_code_pt code; |
140 ngx_http_script_engine_t *e; | |
635 | 141 ngx_http_rewrite_loc_conf_t *rlcf; |
216
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142 |
635 | 143 rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); |
216
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144 |
635 | 145 if (rlcf->codes == NULL) { |
485 | 146 return NGX_DECLINED; |
147 } | |
216
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148 |
509 | 149 e = ngx_pcalloc(r->pool, sizeof(ngx_http_script_engine_t)); |
501 | 150 if (e == NULL) { |
485 | 151 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
152 } | |
216
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153 |
509 | 154 e->sp = ngx_pcalloc(r->pool, |
635 | 155 rlcf->stack_size * sizeof(ngx_http_variable_value_t)); |
485 | 156 if (e->sp == NULL) { |
157 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
158 } | |
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159 |
635 | 160 if (rlcf->captures) { |
161 e->captures = ngx_palloc(r->pool, rlcf->captures * sizeof(int)); | |
485 | 162 if (e->captures == NULL) { |
216
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163 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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164 } |
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165 |
485 | 166 } else { |
167 e->captures = NULL; | |
168 } | |
169 | |
635 | 170 e->ip = rlcf->codes->elts; |
509 | 171 e->request = r; |
485 | 172 e->quote = 1; |
635 | 173 e->log = rlcf->log; |
485 | 174 e->status = NGX_DECLINED; |
175 | |
176 while (*(uintptr_t *) e->ip) { | |
509 | 177 code = *(ngx_http_script_code_pt *) e->ip; |
485 | 178 code(e); |
179 } | |
180 | |
181 return e->status; | |
182 } | |
183 | |
184 | |
573 | 185 static ngx_int_t |
186 ngx_http_rewrite_var(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
187 uintptr_t data) | |
501 | 188 { |
635 | 189 ngx_http_variable_t *var; |
190 ngx_http_core_main_conf_t *cmcf; | |
191 ngx_http_rewrite_loc_conf_t *rlcf; | |
192 | |
193 rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); | |
194 | |
195 if (rlcf->uninitialized_variable_warn == 0) { | |
196 *v = ngx_http_variable_null_value; | |
197 return NGX_OK; | |
198 } | |
501 | 199 |
200 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
201 | |
202 var = cmcf->variables.elts; | |
203 | |
204 /* | |
205 * the ngx_http_rewrite_module sets variables directly in r->variables, | |
519 | 206 * and they should be handled by ngx_http_get_indexed_variable(), |
501 | 207 * so the handler is called only if the variable is not initialized |
208 */ | |
209 | |
635 | 210 ngx_log_error(NGX_LOG_WARN, r->connection->log, 0, |
501 | 211 "using uninitialized \"%V\" variable", &var[data].name); |
212 | |
577 | 213 *v = ngx_http_variable_null_value; |
573 | 214 |
215 return NGX_OK; | |
501 | 216 } |
217 | |
218 | |
487 | 219 static void * |
220 ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf) | |
437
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221 { |
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222 ngx_http_rewrite_loc_conf_t *conf; |
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223 |
501 | 224 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_rewrite_loc_conf_t)); |
225 if (conf == NULL) { | |
437
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226 return NGX_CONF_ERROR; |
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227 } |
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228 |
485 | 229 conf->stack_size = NGX_CONF_UNSET_UINT; |
230 conf->log = NGX_CONF_UNSET; | |
635 | 231 conf->uninitialized_variable_warn = NGX_CONF_UNSET; |
485 | 232 |
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233 return conf; |
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234 } |
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235 |
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236 |
487 | 237 static char * |
238 ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
216
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239 { |
485 | 240 ngx_http_rewrite_loc_conf_t *prev = parent; |
241 ngx_http_rewrite_loc_conf_t *conf = child; | |
242 | |
509 | 243 uintptr_t *code; |
485 | 244 |
245 ngx_conf_merge_value(conf->log, prev->log, 0); | |
635 | 246 ngx_conf_merge_value(conf->uninitialized_variable_warn, |
247 prev->uninitialized_variable_warn, 1); | |
663 | 248 ngx_conf_merge_uint_value(conf->stack_size, prev->stack_size, 10); |
485 | 249 |
250 if (conf->codes == NULL) { | |
251 return NGX_CONF_OK; | |
252 } | |
253 | |
254 if (conf->codes == prev->codes) { | |
255 return NGX_CONF_OK; | |
256 } | |
257 | |
501 | 258 code = ngx_array_push_n(conf->codes, sizeof(uintptr_t)); |
259 if (code == NULL) { | |
216
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260 return NGX_CONF_ERROR; |
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parents:
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261 } |
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262 |
485 | 263 *code = (uintptr_t) NULL; |
264 | |
265 return NGX_CONF_OK; | |
266 } | |
267 | |
216
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268 |
509 | 269 static ngx_int_t |
270 ngx_http_rewrite_init(ngx_cycle_t *cycle) | |
577 | 271 { |
509 | 272 ngx_http_handler_pt *h; |
273 ngx_http_core_main_conf_t *cmcf; | |
274 | |
275 cmcf = ngx_http_cycle_get_module_main_conf(cycle, ngx_http_core_module); | |
276 | |
573 | 277 h = ngx_array_push(&cmcf->phases[NGX_HTTP_SERVER_REWRITE_PHASE].handlers); |
278 if (h == NULL) { | |
279 return NGX_ERROR; | |
280 } | |
281 | |
282 *h = ngx_http_rewrite_handler; | |
283 | |
509 | 284 h = ngx_array_push(&cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers); |
285 if (h == NULL) { | |
286 return NGX_ERROR; | |
287 } | |
288 | |
289 *h = ngx_http_rewrite_handler; | |
290 | |
291 return NGX_OK; | |
577 | 292 } |
509 | 293 |
294 | |
487 | 295 static char * |
296 ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
485 | 297 { |
577 | 298 ngx_http_rewrite_loc_conf_t *lcf = conf; |
299 | |
509 | 300 ngx_str_t *value, err; |
301 ngx_int_t n; | |
302 ngx_uint_t last; | |
303 ngx_http_script_code_pt *code; | |
304 ngx_http_script_compile_t sc; | |
305 ngx_http_script_regex_code_t *regex; | |
306 ngx_http_script_regex_end_code_t *regex_end; | |
307 u_char errstr[NGX_MAX_CONF_ERRSTR]; | |
485 | 308 |
509 | 309 regex = ngx_http_script_start_code(cf->pool, &lcf->codes, |
310 sizeof(ngx_http_script_regex_code_t)); | |
485 | 311 if (regex == NULL) { |
312 return NGX_CONF_ERROR; | |
313 } | |
216
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314 |
509 | 315 ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t)); |
316 | |
216
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317 value = cf->args->elts; |
f1d0e5f09c1e
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318 |
485 | 319 err.len = NGX_MAX_CONF_ERRSTR; |
320 err.data = errstr; | |
321 | |
322 /* TODO: NGX_REGEX_CASELESS */ | |
323 | |
324 regex->regex = ngx_regex_compile(&value[1], 0, cf->pool, &err); | |
325 | |
326 if (regex->regex == NULL) { | |
327 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s", err.data); | |
328 return NGX_CONF_ERROR; | |
329 } | |
330 | |
509 | 331 regex->code = ngx_http_script_regex_start_code; |
485 | 332 regex->uri = 1; |
333 regex->name = value[1]; | |
216
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334 |
509 | 335 if (value[2].data[value[2].len - 1] == '?') { |
336 | |
337 /* the last "?" drops the original arguments */ | |
338 value[2].len--; | |
339 | |
340 } else { | |
341 regex->add_args = 1; | |
342 } | |
343 | |
485 | 344 last = 0; |
345 | |
346 if (ngx_strncmp(value[2].data, "http://", sizeof("http://") - 1) == 0) { | |
347 regex->status = NGX_HTTP_MOVED_TEMPORARILY; | |
348 regex->redirect = 1; | |
349 last = 1; | |
350 } | |
351 | |
352 if (cf->args->nelts == 4) { | |
353 if (ngx_strcmp(value[3].data, "last") == 0) { | |
354 last = 1; | |
216
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355 |
487 | 356 } else if (ngx_strcmp(value[3].data, "break") == 0) { |
357 regex->break_cycle = 1; | |
358 last = 1; | |
359 | |
485 | 360 } else if (ngx_strcmp(value[3].data, "redirect") == 0) { |
361 regex->status = NGX_HTTP_MOVED_TEMPORARILY; | |
362 regex->redirect = 1; | |
363 last = 1; | |
326
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325
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364 |
485 | 365 } else if (ngx_strcmp(value[3].data, "permanent") == 0) { |
366 regex->status = NGX_HTTP_MOVED_PERMANENTLY; | |
367 regex->redirect = 1; | |
368 last = 1; | |
326
8733703a37f3
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325
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369 |
485 | 370 } else { |
326
8733703a37f3
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325
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371 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
461 | 372 "invalid parameter \"%V\"", &value[3]); |
326
8733703a37f3
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325
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373 return NGX_CONF_ERROR; |
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
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325
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374 } |
485 | 375 } |
326
8733703a37f3
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325
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376 |
509 | 377 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); |
485 | 378 |
509 | 379 sc.cf = cf; |
380 sc.source = &value[2]; | |
381 sc.lengths = ®ex->lengths; | |
382 sc.values = &lcf->codes; | |
383 sc.variables = ngx_http_script_variables_count(&value[2]); | |
384 sc.main = regex; | |
385 sc.complete_lengths = 1; | |
386 sc.compile_args = !regex->redirect; | |
485 | 387 |
509 | 388 if (ngx_http_script_compile(&sc) != NGX_OK) { |
389 return NGX_CONF_ERROR; | |
390 } | |
485 | 391 |
509 | 392 regex = sc.main; |
216
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393 |
509 | 394 regex->ncaptures = sc.ncaptures; |
395 regex->size = sc.size; | |
396 regex->args = sc.args; | |
216
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397 |
641 | 398 if (sc.variables == 0 && !sc.dup_capture) { |
509 | 399 regex->lengths = NULL; |
485 | 400 } |
401 | |
402 n = ngx_regex_capture_count(regex->regex); | |
403 | |
501 | 404 if (n < 0) { |
405 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
406 ngx_regex_capture_count_n " failed for " | |
407 "pattern \"%V\"", &value[1]); | |
408 return NGX_CONF_ERROR; | |
409 } | |
410 | |
411 if (regex->ncaptures > (ngx_uint_t) n) { | |
485 | 412 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
413 "pattern \"%V\" has less captures " | |
414 "than referrenced in substitution \"%V\"", | |
415 &value[1], &value[2]); | |
416 return NGX_CONF_ERROR; | |
417 } | |
418 | |
501 | 419 if (regex->ncaptures < (ngx_uint_t) n) { |
420 regex->ncaptures = (ngx_uint_t) n; | |
485 | 421 } |
481 | 422 |
485 | 423 if (regex->ncaptures) { |
424 regex->ncaptures = (regex->ncaptures + 1) * 3; | |
425 | |
515 | 426 if (lcf->captures < regex->ncaptures) { |
427 lcf->captures = regex->ncaptures; | |
428 } | |
509 | 429 } |
430 | |
431 regex_end = ngx_http_script_add_code(lcf->codes, | |
432 sizeof(ngx_http_script_regex_end_code_t), | |
433 ®ex); | |
485 | 434 if (regex_end == NULL) { |
435 return NGX_CONF_ERROR; | |
436 } | |
437 | |
509 | 438 regex_end->code = ngx_http_script_regex_end_code; |
485 | 439 regex_end->uri = regex->uri; |
440 regex_end->args = regex->args; | |
509 | 441 regex_end->add_args = regex->add_args; |
485 | 442 regex_end->redirect = regex->redirect; |
443 | |
444 if (last) { | |
517 | 445 code = ngx_http_script_add_code(lcf->codes, sizeof(uintptr_t), ®ex); |
485 | 446 if (code == NULL) { |
447 return NGX_CONF_ERROR; | |
218
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216
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448 } |
216
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449 |
485 | 450 *code = (uintptr_t) NULL; |
451 } | |
452 | |
453 regex->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
454 - (u_char *) regex; | |
455 | |
456 return NGX_CONF_OK; | |
457 } | |
458 | |
459 | |
487 | 460 static char * |
461 ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
485 | 462 { |
577 | 463 ngx_http_rewrite_loc_conf_t *lcf = conf; |
216
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464 |
509 | 465 ngx_str_t *value; |
466 ngx_http_script_return_code_t *ret; | |
485 | 467 |
509 | 468 ret = ngx_http_script_start_code(cf->pool, &lcf->codes, |
469 sizeof(ngx_http_script_return_code_t)); | |
485 | 470 if (ret == NULL) { |
471 return NGX_CONF_ERROR; | |
472 } | |
473 | |
474 value = cf->args->elts; | |
475 | |
509 | 476 ret->code = ngx_http_script_return_code; |
485 | 477 ret->null = (uintptr_t) NULL; |
478 | |
479 ret->status = ngx_atoi(value[1].data, value[1].len); | |
480 | |
481 if (ret->status == (uintptr_t) NGX_ERROR) { | |
482 return NGX_CONF_ERROR; | |
216
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483 } |
f1d0e5f09c1e
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parents:
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484 |
f1d0e5f09c1e
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parents:
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485 return NGX_CONF_OK; |
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
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parents:
diff
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486 } |
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
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parents:
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487 |
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
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parents:
diff
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488 |
487 | 489 static char * |
527 | 490 ngx_http_rewrite_break(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
491 { | |
492 ngx_http_rewrite_loc_conf_t *lcf = conf; | |
493 | |
494 ngx_http_script_code_pt *code; | |
495 | |
496 code = ngx_http_script_start_code(cf->pool, &lcf->codes, sizeof(uintptr_t)); | |
497 if (code == NULL) { | |
498 return NGX_CONF_ERROR; | |
499 } | |
500 | |
501 *code = ngx_http_script_break_code; | |
502 | |
503 return NGX_CONF_OK; | |
504 } | |
505 | |
506 | |
507 static char * | |
487 | 508 ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
437
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396
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509 { |
577 | 510 ngx_http_rewrite_loc_conf_t *lcf = conf; |
485 | 511 |
512 void *mconf; | |
513 char *rv; | |
514 u_char *elts; | |
515 ngx_uint_t i; | |
516 ngx_conf_t save; | |
517 ngx_http_module_t *module; | |
518 ngx_http_conf_ctx_t *ctx, *pctx; | |
519 ngx_http_core_loc_conf_t *clcf, *pclcf, **clcfp; | |
509 | 520 ngx_http_script_if_code_t *if_code; |
485 | 521 ngx_http_rewrite_loc_conf_t *nlcf; |
522 | |
501 | 523 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); |
524 if (ctx == NULL) { | |
485 | 525 return NGX_CONF_ERROR; |
526 } | |
527 | |
528 pctx = cf->ctx; | |
529 ctx->main_conf = pctx->main_conf; | |
577 | 530 ctx->srv_conf = pctx->srv_conf; |
485 | 531 |
532 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
533 if (ctx->loc_conf == NULL) { | |
534 return NGX_CONF_ERROR; | |
535 } | |
536 | |
537 for (i = 0; ngx_modules[i]; i++) { | |
538 if (ngx_modules[i]->type != NGX_HTTP_MODULE) { | |
539 continue; | |
540 } | |
541 | |
542 module = ngx_modules[i]->ctx; | |
577 | 543 |
485 | 544 if (module->create_loc_conf) { |
545 | |
501 | 546 mconf = module->create_loc_conf(cf); |
547 if (mconf == NULL) { | |
485 | 548 return NGX_CONF_ERROR; |
549 } | |
550 | |
551 ctx->loc_conf[ngx_modules[i]->ctx_index] = mconf; | |
552 } | |
553 } | |
554 | |
555 pclcf = pctx->loc_conf[ngx_http_core_module.ctx_index]; | |
556 | |
557 clcf = ctx->loc_conf[ngx_http_core_module.ctx_index]; | |
558 clcf->loc_conf = ctx->loc_conf; | |
559 clcf->name = pclcf->name; | |
560 clcf->noname = 1; | |
561 | |
562 if (pclcf->locations.elts == NULL) { | |
563 if (ngx_array_init(&pclcf->locations, cf->pool, 4, sizeof(void *)) | |
555 | 564 == NGX_ERROR) |
485 | 565 { |
566 return NGX_CONF_ERROR; | |
567 } | |
568 } | |
569 | |
501 | 570 clcfp = ngx_array_push(&pclcf->locations); |
571 if (clcfp == NULL) { | |
485 | 572 return NGX_CONF_ERROR; |
573 } | |
574 | |
575 *clcfp = clcf; | |
576 | |
577 | |
501 | 578 if (ngx_http_rewrite_if_condition(cf, lcf) != NGX_CONF_OK) { |
485 | 579 return NGX_CONF_ERROR; |
580 } | |
581 | |
509 | 582 if_code = ngx_array_push_n(lcf->codes, sizeof(ngx_http_script_if_code_t)); |
485 | 583 if (if_code == NULL) { |
584 return NULL; | |
585 } | |
586 | |
509 | 587 if_code->code = ngx_http_script_if_code; |
485 | 588 |
589 elts = lcf->codes->elts; | |
590 | |
591 | |
631 | 592 /* the inner directives must be compiled to the same code array */ |
485 | 593 |
594 nlcf = ctx->loc_conf[ngx_http_rewrite_module.ctx_index]; | |
595 nlcf->codes = lcf->codes; | |
596 | |
597 | |
598 save = *cf; | |
599 cf->ctx = ctx; | |
600 | |
601 if (pclcf->name.len == 0) { | |
602 if_code->loc_conf = NULL; | |
603 cf->cmd_type = NGX_HTTP_SIF_CONF; | |
604 | |
605 } else { | |
606 if_code->loc_conf = ctx->loc_conf; | |
607 cf->cmd_type = NGX_HTTP_LIF_CONF; | |
608 } | |
609 | |
610 rv = ngx_conf_parse(cf, NULL); | |
611 | |
612 *cf = save; | |
613 | |
614 if (rv != NGX_CONF_OK) { | |
615 return rv; | |
616 } | |
617 | |
618 | |
517 | 619 if (lcf->captures < nlcf->captures) { |
620 lcf->captures = nlcf->captures; | |
621 } | |
622 | |
623 | |
485 | 624 if (elts != lcf->codes->elts) { |
509 | 625 if_code = (ngx_http_script_if_code_t *) |
485 | 626 ((u_char *) if_code + ((u_char *) lcf->codes->elts - elts)); |
627 } | |
628 | |
629 if_code->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
630 - (u_char *) if_code; | |
437
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396
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631 |
555 | 632 /* the code array belong to parent block */ |
633 | |
634 nlcf->codes = NULL; | |
635 | |
437
470270fa84d2
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396
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636 return NGX_CONF_OK; |
470270fa84d2
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parents:
396
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637 } |
470270fa84d2
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parents:
396
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638 |
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
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parents:
396
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639 |
487 | 640 static char * |
501 | 641 ngx_http_rewrite_if_condition(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf) |
642 { | |
631 | 643 u_char *p; |
644 size_t len; | |
509 | 645 ngx_str_t *value, err; |
515 | 646 ngx_uint_t cur, last, n; |
577 | 647 ngx_http_script_code_pt *code; |
631 | 648 ngx_http_script_file_code_t *fop; |
509 | 649 ngx_http_script_regex_code_t *regex; |
650 u_char errstr[NGX_MAX_CONF_ERRSTR]; | |
501 | 651 |
652 value = cf->args->elts; | |
653 last = cf->args->nelts - 1; | |
654 | |
655 if (value[1].len < 1 || value[1].data[0] != '(') { | |
656 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
657 "invalid condition \"%V\"", &value[1]); | |
658 return NGX_CONF_ERROR; | |
659 } | |
660 | |
661 if (value[1].len == 1) { | |
662 cur = 2; | |
663 | |
664 } else { | |
665 cur = 1; | |
666 value[1].len--; | |
667 value[1].data++; | |
668 } | |
669 | |
670 if (value[last].len < 1 || value[last].data[value[last].len - 1] != ')') { | |
671 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
672 "invalid condition \"%V\"", &value[last]); | |
673 return NGX_CONF_ERROR; | |
674 } | |
675 | |
676 if (value[last].len == 1) { | |
677 last--; | |
678 | |
679 } else { | |
680 value[last].len--; | |
681 value[last].data[value[last].len] = '\0'; | |
682 } | |
683 | |
631 | 684 len = value[cur].len; |
685 p = value[cur].data; | |
686 | |
687 if (len > 1 && p[0] == '$') { | |
501 | 688 |
689 if (cur != last && cur + 2 != last) { | |
690 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
631 | 691 "invalid condition \"%V\"", &value[cur]); |
501 | 692 return NGX_CONF_ERROR; |
693 } | |
694 | |
577 | 695 if (ngx_http_rewrite_variable(cf, lcf, &value[cur]) != NGX_CONF_OK) { |
501 | 696 return NGX_CONF_ERROR; |
697 } | |
698 | |
699 if (cur == last) { | |
700 return NGX_CONF_OK; | |
701 } | |
702 | |
703 cur++; | |
704 | |
631 | 705 len = value[cur].len; |
706 p = value[cur].data; | |
707 | |
708 if (len == 1 && p[0] == '=') { | |
577 | 709 |
710 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { | |
711 return NGX_CONF_ERROR; | |
712 } | |
713 | |
714 code = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
715 sizeof(uintptr_t)); | |
716 if (code == NULL) { | |
717 return NGX_CONF_ERROR; | |
718 } | |
719 | |
720 *code = ngx_http_script_equal_code; | |
721 | |
722 return NGX_CONF_OK; | |
501 | 723 } |
724 | |
631 | 725 if (len == 2 && p[0] == '!' && p[1] == '=') { |
726 | |
577 | 727 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { |
728 return NGX_CONF_ERROR; | |
729 } | |
730 | |
731 code = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
732 sizeof(uintptr_t)); | |
733 if (code == NULL) { | |
734 return NGX_CONF_ERROR; | |
735 } | |
736 | |
737 *code = ngx_http_script_not_equal_code; | |
738 return NGX_CONF_OK; | |
501 | 739 } |
740 | |
631 | 741 if ((len == 1 && p[0] == '~') |
742 || (len == 2 && p[0] == '~' && p[1] == '*') | |
743 || (len == 2 && p[0] == '!' && p[1] == '~') | |
744 || (len == 3 && p[0] == '!' && p[1] == '~' && p[2] == '*')) | |
577 | 745 { |
746 regex = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
747 sizeof(ngx_http_script_regex_code_t)); | |
748 if (regex == NULL) { | |
749 return NGX_CONF_ERROR; | |
750 } | |
509 | 751 |
577 | 752 ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t)); |
753 | |
754 err.len = NGX_MAX_CONF_ERRSTR; | |
755 err.data = errstr; | |
756 | |
757 regex->regex = ngx_regex_compile(&value[last], | |
631 | 758 (p[len - 1] == '*') ? NGX_REGEX_CASELESS : 0, |
759 cf->pool, &err); | |
501 | 760 |
577 | 761 if (regex->regex == NULL) { |
762 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s", err.data); | |
763 return NGX_CONF_ERROR; | |
764 } | |
765 | |
766 regex->code = ngx_http_script_regex_start_code; | |
767 regex->next = sizeof(ngx_http_script_regex_code_t); | |
768 regex->test = 1; | |
631 | 769 if (p[0] == '!') { |
770 regex->negative_test = 1; | |
771 } | |
577 | 772 regex->name = value[last]; |
501 | 773 |
577 | 774 n = ngx_regex_capture_count(regex->regex); |
775 | |
776 if (n) { | |
777 regex->ncaptures = (n + 1) * 3; | |
778 | |
779 if (lcf->captures < regex->ncaptures) { | |
780 lcf->captures = regex->ncaptures; | |
781 } | |
782 } | |
783 | |
784 return NGX_CONF_OK; | |
501 | 785 } |
786 | |
577 | 787 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
788 "unexpected \"%V\" in condition", &value[cur]); | |
789 return NGX_CONF_ERROR; | |
631 | 790 |
791 } else if ((len == 2 && p[0] == '-') | |
792 || (len == 3 && p[0] == '!' && p[1] == '-')) | |
793 { | |
794 if (cur + 1 != last) { | |
795 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
796 "invalid condition \"%V\"", &value[cur]); | |
797 return NGX_CONF_ERROR; | |
798 } | |
799 | |
800 value[last].data[value[last].len] = '\0'; | |
801 value[last].len++; | |
802 | |
803 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { | |
804 return NGX_CONF_ERROR; | |
805 } | |
806 | |
807 fop = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
808 sizeof(ngx_http_script_file_code_t)); | |
809 if (fop == NULL) { | |
810 return NGX_CONF_ERROR; | |
811 } | |
812 | |
813 fop->code = ngx_http_script_file_code; | |
814 | |
815 if (p[1] == 'f') { | |
816 fop->op = ngx_http_script_file_plain; | |
817 return NGX_CONF_OK; | |
818 } | |
819 | |
820 if (p[0] == '!') { | |
821 if (p[2] == 'f') { | |
822 fop->op = ngx_http_script_file_not_plain; | |
823 return NGX_CONF_OK; | |
824 } | |
825 } | |
826 | |
827 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
828 "invalid condition \"%V\"", &value[cur]); | |
829 return NGX_CONF_ERROR; | |
501 | 830 } |
831 | |
832 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
833 "invalid condition \"%V\"", &value[cur]); | |
834 | |
835 return NGX_CONF_ERROR; | |
836 } | |
837 | |
838 | |
839 static char * | |
840 ngx_http_rewrite_variable(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, | |
841 ngx_str_t *value) | |
842 { | |
509 | 843 ngx_int_t index; |
844 ngx_http_script_var_code_t *var_code; | |
501 | 845 |
846 value->len--; | |
847 value->data++; | |
848 | |
577 | 849 index = ngx_http_get_variable_index(cf, value); |
501 | 850 |
577 | 851 if (index == NGX_ERROR) { |
852 return NGX_CONF_ERROR; | |
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
853 } |
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
854 |
577 | 855 var_code = ngx_http_script_start_code(cf->pool, &lcf->codes, |
856 sizeof(ngx_http_script_var_code_t)); | |
857 if (var_code == NULL) { | |
858 return NGX_CONF_ERROR; | |
485 | 859 } |
860 | |
577 | 861 var_code->code = ngx_http_script_var_code; |
862 var_code->index = index; | |
485 | 863 |
864 return NGX_CONF_OK; | |
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
865 } |
485 | 866 |
867 | |
501 | 868 static char * |
869 ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
870 { | |
577 | 871 ngx_http_rewrite_loc_conf_t *lcf = conf; |
501 | 872 |
637 | 873 ngx_int_t index; |
874 ngx_str_t *value; | |
875 ngx_http_variable_t *v; | |
876 ngx_http_script_var_code_t *vcode; | |
877 ngx_http_script_var_handler_code_t *vhcode; | |
501 | 878 |
879 value = cf->args->elts; | |
880 | |
881 if (value[1].data[0] != '$') { | |
882 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
883 "invalid variable name \"%V\"", &value[1]); | |
884 return NGX_CONF_ERROR; | |
885 } | |
886 | |
887 value[1].len--; | |
888 value[1].data++; | |
889 | |
509 | 890 v = ngx_http_add_variable(cf, &value[1], NGX_HTTP_VAR_CHANGABLE); |
501 | 891 if (v == NULL) { |
892 return NGX_CONF_ERROR; | |
893 } | |
894 | |
509 | 895 index = ngx_http_get_variable_index(cf, &value[1]); |
896 if (index == NGX_ERROR) { | |
897 return NGX_CONF_ERROR; | |
898 } | |
501 | 899 |
637 | 900 if (v->get_handler == NULL) { |
901 v->get_handler = ngx_http_rewrite_var; | |
555 | 902 v->data = index; |
903 } | |
509 | 904 |
577 | 905 if (ngx_http_rewrite_value(cf, lcf, &value[2]) != NGX_CONF_OK) { |
906 return NGX_CONF_ERROR; | |
515 | 907 } |
501 | 908 |
637 | 909 if (v->set_handler) { |
910 vhcode = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
911 sizeof(ngx_http_script_var_handler_code_t)); | |
912 if (vhcode == NULL) { | |
913 return NGX_CONF_ERROR; | |
914 } | |
915 | |
916 vhcode->code = ngx_http_script_var_set_handler_code; | |
917 vhcode->handler = v->set_handler; | |
918 vhcode->data = v->data; | |
919 | |
920 return NGX_CONF_OK; | |
921 } | |
922 | |
923 vcode = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
924 sizeof(ngx_http_script_var_code_t)); | |
925 if (vcode == NULL) { | |
501 | 926 return NGX_CONF_ERROR; |
927 } | |
928 | |
637 | 929 vcode->code = ngx_http_script_set_var_code; |
930 vcode->index = (uintptr_t) index; | |
501 | 931 |
932 return NGX_CONF_OK; | |
933 } | |
577 | 934 |
935 | |
936 static char * | |
937 ngx_http_rewrite_value(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, | |
938 ngx_str_t *value) | |
939 { | |
940 ngx_int_t n; | |
941 ngx_http_script_compile_t sc; | |
942 ngx_http_script_value_code_t *val; | |
943 ngx_http_script_complex_value_code_t *complex; | |
944 | |
945 n = ngx_http_script_variables_count(value); | |
946 | |
947 if (n == 0) { | |
948 val = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
949 sizeof(ngx_http_script_value_code_t)); | |
950 if (val == NULL) { | |
951 return NGX_CONF_ERROR; | |
952 } | |
953 | |
954 n = ngx_atoi(value->data, value->len); | |
955 | |
956 if (n == NGX_ERROR) { | |
957 n = 0; | |
958 } | |
959 | |
960 val->code = ngx_http_script_value_code; | |
961 val->value = (uintptr_t) n; | |
962 val->text_len = (uintptr_t) value->len; | |
963 val->text_data = (uintptr_t) value->data; | |
964 | |
965 return NGX_CONF_OK; | |
966 } | |
967 | |
968 complex = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
969 sizeof(ngx_http_script_complex_value_code_t)); | |
970 if (complex == NULL) { | |
971 return NGX_CONF_ERROR; | |
972 } | |
973 | |
974 complex->code = ngx_http_script_complex_value_code; | |
975 complex->lengths = NULL; | |
976 | |
977 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
978 | |
979 sc.cf = cf; | |
980 sc.source = value; | |
981 sc.lengths = &complex->lengths; | |
982 sc.values = &lcf->codes; | |
983 sc.variables = n; | |
984 sc.complete_lengths = 1; | |
985 | |
986 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
987 return NGX_CONF_ERROR; | |
988 } | |
989 | |
990 return NGX_CONF_OK; | |
991 } |